Monthly representations of mid-tropospheric carbon dioxide from the atmospheric infrared sounder

Thomas S. Pagano; Edward T. Olsen; Moustafa T. Chahine; Alexander Ruzmaikin; Hai Nguyen; Xun Jiang

doi:10.1117/12.894960

6 September 2011 Monthly representations of mid-tropospheric carbon dioxide from the atmospheric infrared sounder

Thomas S. Pagano, Edward T. Olsen, Moustafa T. Chahine, Alexander Ruzmaikin, Hai Nguyen, Xun Jiang

Proceedings Volume 8158, Imaging Spectrometry XVI; 81580C (2011) https://doi.org/10.1117/12.894960
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

The Atmospheric Infrared Sounder (AIRS) on NASA's Earth Observing System Aqua spacecraft was launched in May of 2002 and acquires hyperspectral infrared spectra used to generate a wide range of atmospheric products including temperature, water vapor, and trace gas species including carbon dioxide. Here we present monthly representations of global concentrations of mid-tropospheric carbon dioxide produced from 8 years of data obtained by AIRS between the years of 2003 and 2010. We define them as "representations" rather than "climatologies" to reflect that the files are produced over a relatively short time period and represent summaries of the Level 3 data. Finally, they have not yet been independently validated. The representations have a horizontal resolution of 2.0° × 2.5° (Latitude × Longitude) and faithfully reproduce the original 8 years of monthly L3 CO₂ concentrations with a standard deviation of 1.48 ppm and less than 2% outliers. The representations are intended for use in studies of the global general circulation of CO₂ and identification of anomalies in CO₂ typically associated with atmospheric transport. The seasonal variability and trend found in the AIRS CO₂ data are discussed.

Citation Download Citation

Thomas S. Pagano, Edward T. Olsen, Moustafa T. Chahine, Alexander Ruzmaikin, Hai Nguyen, and Xun Jiang "Monthly representations of mid-tropospheric carbon dioxide from the atmospheric infrared sounder", Proc. SPIE 8158, Imaging Spectrometry XVI, 81580C (6 September 2011); https://doi.org/10.1117/12.894960

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